427648940 has 48 divisors (see below), whose sum is σ = 965133792. Its totient is φ = 158585856.

The previous prime is 427648939. The next prime is 427648967. The reversal of 427648940 is 49846724.

It is a junction number, because it is equal to n+sod(n) for n = 427648891 and 427648900.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13394 + ... + 32166.

It is an arithmetic number, because the mean of its divisors is an integer number (20106954).

Almost surely, 2^427648940 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 427648940, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (482566896).

427648940 is an abundant number, since it is smaller than the sum of its proper divisors (537484852).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

427648940 is a wasteful number, since it uses less digits than its factorization.

427648940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18866 (or 18864 counting only the distinct ones).

The product of its (nonzero) digits is 387072, while the sum is 44.

The square root of 427648940 is about 20679.6745622362. The cubic root of 427648940 is about 753.4061019499.

The spelling of 427648940 in words is "four hundred twenty-seven million, six hundred forty-eight thousand, nine hundred forty".